Filter combos in document listing

Hi.
I have started using 'document listing' template for listing products.
As I want to have my combos with my content to filter products (not
generic types and sources), I added two combos following the way in
which you inserted the standard ones for 'types' and 'sources'.
One is for raw materials, the other is for families of products.
I followed these steps:
 
- Declare containers, fields and vectors in globals.inc;
- Add the filtering part in filters.inc;
- Create one page per combo following the trace of types.inc;
 
Combos get filled end get orderer correctly in edit mode.
In Live mode they remain empty; the console provides the following
warnings:
 
 
571906 [Thread-23]  INFO - GET = 200 OK (time: 0 ms) URI =
/shared/manfrotto/ima
ge_bank/NeilLeventhal.jpg
573109 [Thread-20]  WARN - Didn't find object for expression
currentSite.homePag
e.containerLists["familyContainer"].getContainerByID(123).fields["family
Value"].
value
573109 [Thread-20]  WARN - Didn't find object for expression
currentSite.homePag
e.containerLists["materialContainer"].getContainerByID(120).fields["mate
rialValu
e"].value
573125 [Thread-20]  WARN - Didn't find object for expression
currentSite.homePag
e.containerLists["familyContainer"].getContainerByID(121).fields["family
Value"].
value
573140 [Thread-20]  WARN - Didn't find object for expression
currentSite.homePag
e.containerLists["materialContainer"].getContainerByID(122).fields["mate
rialValu
e"].value
573156 [Thread-20]  WARN - Didn't find object for expression
currentSite.homePag
e.containerLists["familyContainer"].getContainerByID(123).fields["family
Value"].
value
573172 [Thread-20]  WARN - Didn't find object for expression
currentSite.homePag
e.containerLists["materialContainer"].getContainerByID(122).fields["mate
rialValu
e"].value
573172 [Thread-20]  INFO - Served core engine for user guest from
[127.0.0.1] in
 [766ms]
 
 
I am using jahia 404 on sqlserver, jdk 14.
Thankyou very much for every possible help, bye.